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56-101-01175 Revision P Page | 65
CHAPTER 6: MAINTENANCE
1. GENERAL
A. The manufacturer of this equipment does not recommend that the user attempt any
maintenance or repair. In case of malfunction, contact the manufacturer to obtain the list
of approved repair facilities worldwide. This will ensure that this equipment is serviced
using proper procedures and certified instrument.
2. PREVENTATIVE
A. The user should visually inspect the unit prior to each use to look for signs of apparent
damage.
B. Inspect the ports, hoses, and aircraft adapters for the presence of moisture or any type of
foreign matter.
C. With the Test Set disconnected from the hose and adapter assemblies, power the unit on
and observe the initialization routine to make sure there are no apparent issues reported.
3. TROUBLESHOOTING
A. If the unit displays an error code during use, please record the error code and contact
Barfield or its representative for further instructions before proceeding.
B. If the Test Set seems to be malfunctioning but displays no error code, then return the unit
safely to ground level. Cycle the power to see if the problem clears, making notes of any
issues discovered during the Power On Self-Test routines.
4. CALIBRATION
A. The Test Set calibration interval is once per annum (12 months) (refer to section
on page 2).
B. Please see the list of approved repair facilities under
on page vi.
CAUTION:
RECERTIFICATION BY A CALIBRATION/REPAIR SHOP NOT
POSSESSING THE NECESSARY TECHNICAL KNOWLEDGE,
DOCUMENTATION, SPECIAL TEST EQUIPMENT, TOOLING, AND
STANDARDS WILL ADVERSELY AFFECT THE ACCURACY/CAPABILITY
OF THE DPS1000 FOR TESTING THE AIRCRAFT, INCLUDING THE
DEMANDING REDUCED VERTICAL SEPARATION MINIMUM (RVSM)
ACCURACY REQUIREMENT.